Photoshop CC2015 - When I try to use "File Save As", I am unable to choose my preferred destination folder. I can choose my external disc, but I can't go further. I have to save to my hard drive and then move the file to the preferred destination folder. This happened with the last so-called upgrade.

I'm trying to save a photo to my passport for Mac. From there I need to be able to choose my Lightroom folder and then a subsequent folder. I've been able to do this for a long time...It's my normal workflow. As I said, I have been fighting this problem since the last upgrade. I have CC2015.0.1
I have to now save it to my picture folder or My Passport for Mac (either one) and then go back and move it to the external drive. Doable, but a real hassle.

I tried to add more Recent Places.
I tried to open the LR Folder just prior to this, hoping it would show up in Recent Places. I can't figure out a way around it.
A have also checked PS Preferences, File Handling. My box for "Save As to Original Folder" is purposely unchecked because I don't want to save my digital art compositions to my Original Resources Folder. I want to save them and various versions to my Project folder which resides on my external drive. I had to do this because my hard drive is filling up with my 40,000+ photos. I've never seen such a weird problem. I should be able to click on My Passport for Mac, then on My LR Folder, and then choose a subsequent folder. I can't get any further than to click on my passport drive. I don't get the option. I have to go back to finder to move the copy the files to the right folder and then delete them off the Tier 1 external save so that I don't end up with two copies of these very large files. Help please!